/// info

Added in FastAPI 0.135.0.

///

## What are Server-Sent Events? { #what-are-server-sent-events }

SSE is a standard for streaming data from the server to the client over HTTP.

Each event is a small text block with "fields" like `data`, `event`, `id`, and `retry`, separated by blank lines.

It looks like this:

```
data: {"name": "Portal Gun", "price": 999.99}

    App->>Client: Send Item 2
    App->>App: Produce Item 3
    Client->>Client: Process Item 2
    App->>Client: Send Item 3
    Client->>Client: Process Item 3
    Note over App: Keeps producing...
    Note over Client: Keeps consuming...
```

It could even be an infinite stream, where you keep sending data.

## JSON Lines { #json-lines }

        String xpackTest = "bar/10_basic.yml"
        setupRestResources([apiCore1, apiCore2, apiXpack], [coreTest], [xpackTest])
        // intentionally not adding tests to project, they will be copied over via the plugin
        // this tests that the test copy happens before the api copy since the api copy will only trigger if there are tests in the project

        when:

          throw new IllegalStateException();
        }
      }
    }
    return new WithCharacteristics(IntStream.range(0, size).spliterator());
  }

  /**
   * Returns a {@code Spliterator} over the elements of {@code fromSpliterator} mapped by {@code
   * function}.
   */
  static <InElementT extends @Nullable Object, OutElementT extends @Nullable Object>
      Spliterator<OutElementT> map(

    App->>Client: Send Item 2
    App->>App: Produce Item 3
    Client->>Client: Process Item 2
    App->>Client: Send Item 3
    Client->>Client: Process Item 3
    Note over App: Keeps producing...
    Note over Client: Keeps consuming...
```

Pode até ser um Stream infinito, em que você continua enviando dados.

## JSON Lines { #json-lines }

package cmd

import (
	"net/http"
	"net/http/httptest"
	"reflect"
	"testing"

	xhttp "github.com/minio/minio/internal/http"
)

// TestGetAndValidateAttributesOpts is currently minimal and covers a subset of getAndValidateAttributesOpts(),
// it is intended to be expanded when the function is worked on in the future.
func TestGetAndValidateAttributesOpts(t *testing.T) {
	globalBucketVersioningSys = &BucketVersioningSys{}

    App->>Client: Send Item 2
    App->>App: Produce Item 3
    Client->>Client: Process Item 2
    App->>Client: Send Item 3
    Client->>Client: Process Item 3
    Note over App: Keeps producing...
    Note over Client: Keeps consuming...
```

데이터를 계속 보내는 무한 스트림일 수도 있습니다.

## JSON Lines { #json-lines }

이런 경우에는 한 줄에 하나의 JSON 객체를 보내는 형식인 "**JSON Lines**"를 사용하는 것이 일반적입니다.

          throw new IllegalStateException();
        }
      }
    }
    return new WithCharacteristics(IntStream.range(0, size).spliterator());
  }

  /**
   * Returns a {@code Spliterator} over the elements of {@code fromSpliterator} mapped by {@code
   * function}.
   */
  static <InElementT extends @Nullable Object, OutElementT extends @Nullable Object>
      Spliterator<OutElementT> map(

     */
    public LruHashSet(final int limitSize) {
        map = new LruHashMap<>(limitSize);
    }

    /**
     * Returns an iterator over the elements in this set. The elements are
     * returned in no particular order.
     *
     * @return an Iterator over the elements in this set.
     * @see ConcurrentModificationException
     */
    @Override
    public Iterator<E> iterator() {

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